In the near future, technology allows people to erase painful memories. Lin Mo, a top "memory weaver", heals clients' trauma with his calm and precise techniques. He adhered to the professional code of non-exploration and non-judgment, until a seemingly ordinary operation left a memory "echo" in his mind that did not belong to the client and was full of blood and despair. This fatal fragment was like a thorn, forcing him to break the rules and step into the maze of lies woven by his clients. When he peeled back the truth layer by layer, he found that he was not only pursuing the fate of a stranger, but also looking at his long-lost past that he had tried to forget.